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3 years ago

The visible part of the spectrum of light is where you find which of the following?

Physics

2 answers:

Marina CMI [18]3 years ago

8 0

C.) All colors .......

Nimfa-mama [501]3 years ago

4 0

The correct answer to the question is- C) All colors i.e the visible part of electromagnetic spectrum of light contains all colors.

EXPLANATION:

The electromagnetic spectrum contains various electromagnetic radiations starting from gamma rays to radio wave.

The electromagnetic waves whose wavelength lie between 350 nano metre to 700 nano metre are visible to human eye. This region of electromagnetic spectrum is called visible light.

The visible light contains white light with its constituent seven colors known as violet, indigo, blue, green, yellow, orange and red.

There are various other colors which are produced due to the intermixing of colors. These colors will also correspond to visible part of the electromagnetic spectrum.

Hence, the correct answer to the question is that it contains all colors.

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After getting a haircut, Joey’s barber spins him around in his barber’s chair 2 times per second. Is period or frequency given?

Rzqust [24]

Answer:

Explanation:

This figure given is the frequency; 2 times per second represents frequency.

What is frequency?

It is the number of times per seconds something goes past or around another.

it is expressed as:

Frequency = $\frac{n}{t}$

where n is the number of turns

t is the time taken

Therefore, the Barber spinned him 2 times in 1 second.

The period is the inverse of frequency. It is the time taken for a body to go through a point;

Period = $\frac{t}{n } = \frac{1}{f}$ = $\frac{1}{2}$ s

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Give 1 real life example of a scenario that takes advantage of the inverse relationship between force and time when impulse is c

OverLord2011 [107]

Answer:

On real life example of a scenario that takes advantage of the inverse relationship between force and time when impulse is constant is when making a serve with a lawn tennis racket

How It is an example of impulse is that when a serve is made by moving the bat slowly, the lawn tennis player uses less force and the ball is in contact with the string for longer a period

When however, the lawn tennis player moves the racket faster, with the strings of the racket highly tensioned he uses more force and the ball also spends less time on the racket to produce the same momentum

Explanation:

The impulse of a force, ΔP is given by the following formula;

ΔP = F × Δt

Where ΔP is constant, we have;

F ∝ 1/Δt

Therefore, for the same impulse, when the force is increased, the time of contact is decreases and vice versa.

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